The aura quartzs are metal steamed quartzs, usually rock crystals coated with different materials (e.g. gold, titanium, platinum, iron etc.). Their names depend on the colors. The aqua aura is light blue, rose aura is pinkish red, indigo aura is indigo blue, sunshine aura is orange, ruby aura is dark red, opal or angel aura is pale rainbow colored etc. Today they are really popular in esoteric and mineral healing circles.